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Go Direct® Salinity Sensor

Go Direct® Salinity Sensor

Go Direct® Salinity Sensor

The Go Direct Salinity Sensor precisely measures the total dissolved salt content of ocean or brackish water. This probe connects via Bluetooth® wireless technology or via USB to your device.

ORDER CODE: GDX-SAL Category

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The Go Direct Salinity Sensor easily and precisely measures the total dissolved salt content in an aqueous solution. You have the ability to measure temperature-compensated salinity or non-temperature-compensated salinity, along with temperature. Measure water with a wide variety of salinities, from brackish water to ocean water, and even hyper-saline environments. You can also study how salinity affects buoyancy or monitor salinity values in estuaries where freshwater mixes with ocean water.

It features a built-in temperature sensor to simultaneously read salinity and temperature. Automatic temperature compensation allows students to calibrate the probe in the lab and then make measurements outdoors without temperature changes affecting data. This temperature compensation can be turned off to perform salinity studies as a function of temperature.

Rechargeable Battery—Ready When You Are

The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Monitor battery life directly from our award-winning Vernier Graphical Analysis® app, as well as LabQuest® 3. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students.

Wireless or Wired—The Flexibility to Choose

Our Go Direct sensors connect directly to your mobile device, Chromebook™, or computer using our Vernier Graphical Analysis® app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth® wireless technology, allowing you to choose the best solution for your classroom or laboratory.

Specifications

  • Range of Salinity Sensor: 0 to 50 ppt (0 to 50,000 ppm)
  • Accuracy (factory calibration):
    • +/-1.5 ppt below 35 ppt
    • +/-5.0 ppt above 35 ppt
  • Accuracy (user calibration):
    • +/- 0.5 ppt within user-calibrated range
  • Temperature compensation: automatic from 5 to 35°C, can be turned off
  • Temperature range (can be placed in): 0 to 80°C
  • Description: dip type, abs body, parallel graphite electrodes
  • Dimensions: 12 mm OD and 150 mm length

Requirements

Choose a platform below to see its compatibility requirements.

LabQuest
InterfaceLabQuest App
LabQuest 3Full support
LabQuest 2 (discontinued)Full support 1
LabQuest (discontinued)Incompatible

Compatibility Notes

  1. Wireless connection of this sensor to a LabQuest 2 requires a Go Direct Bluetooth Adapter when used with some older LabQuest 2 models.
Computers
Software
InterfaceGraphical Analysis
No interface requiredFull support 1
LabQuest 3Full support 2
LabQuest 2 (discontinued)Full support 2 3

Compatibility Notes

  1. For Bluetooth® connectivity, only computers running Windows 10 or Mac OS X 10.10 or newer are supported. The computer must also have a compatible Bluetooth 4.0+ radio.
  2. Connect this sensor directly to a computer or Chromebook via a USB or wireless Bluetooth® connection for best results. Alternatively, this sensor is fully supported when used with LabQuest 2 or LabQuest 3 when the LabQuest is connected to a computer or Chromebook via Wireless Data Sharing.
  3. Wireless connection of this sensor to a LabQuest 2 requires a Go Direct Bluetooth Adapter when used with some older LabQuest 2 models.
Chromebook
Software
InterfaceGraphical Analysis
No interface requiredFull support
LabQuest 3Full support 1
LabQuest 2 (discontinued)Full support 1 2

Compatibility Notes

  1. Connect this sensor directly to a computer or Chromebook via a USB or wireless Bluetooth® connection for best results. Alternatively, this sensor is fully supported when used with LabQuest 2 or LabQuest 3 when the LabQuest is connected to a computer or Chromebook via Wireless Data Sharing.
  2. Wireless connection of this sensor to a LabQuest 2 requires a Go Direct Bluetooth Adapter when used with some older LabQuest 2 models.
iOS
Software
InterfaceGraphical AnalysisGraphical Analysis GW
No interface requiredFull supportIncompatible
LabQuest 3Full support 1 2Full support 1 2
LabQuest 2 (discontinued)Full support 1 2 3Full support 1 2 3

Compatibility Notes

  1. Connect this sensor directly to a supported mobile device via a wireless Bluetooth® connection for best results.
  2. iOS and Androidâ„¢ devices can only connect to LabQuest 2 or LabQuest 3 via Wireless Data Sharing.
  3. Wireless connection of this sensor to a LabQuest 2 requires a Go Direct Bluetooth Adapter when used with some older LabQuest 2 models.
Android
Software
InterfaceGraphical AnalysisGraphical Analysis GW
No interface requiredFull supportIncompatible
LabQuest 3Full support 1 2Full support 1
LabQuest 2 (discontinued)Full support 1 2 3Full support 1 3

Compatibility Notes

  1. iOS and Androidâ„¢ devices can only connect to LabQuest 2 or LabQuest 3 via Wireless Data Sharing.
  2. Connect this sensor directly to a supported mobile device via a wireless Bluetooth® connection for best results.
  3. Wireless connection of this sensor to a LabQuest 2 requires a Go Direct Bluetooth Adapter when used with some older LabQuest 2 models.
Python
Software
InterfacePython
No interface requiredFull support
Javascript
Software
InterfaceJavascript
No interface requiredFull support 1

Compatibility Notes

  1. A wireless Bluetooth® connection can be made with Go Direct sensors on any platform running a browser with WebBluetooth support. However, only a few operating systems have been tested and testing has been limited.
LabVIEW
Software
InterfaceNI LabVIEW
No interface requiredFull support 1

Compatibility Notes

  1. For Bluetooth® connectivity, only computers running Windows 10 or Mac OS X 10.10 or newer are supported. The computer must also have a compatible Bluetooth 4.0+ radio.

What's Included

  • Go Direct Salinity Sensor
  • Micro USB Cable

Accessories

AccessoryOrder CodeQuantity
Go Direct® Sensor ClampGDX-CLAMP
Salinity StandardSAL-ST

Support

Warranty

5-year limited warranty (1 year on battery)
See our warranty policy

Contact Us

Educational use only: Vernier products are designed for educational use. They are not appropriate for industrial, medical, or commercial applications.

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